cvs commit: src/sys/net pfil.h

[Andrew Gallatin]

Gleb Smirnoff writes:
 > Nice! I guess you can tell how much performance did we lose before?

Thanks.

I was running packet blasting tests to mxge(4).  At ~1.3Mpps, where my
old, slow machine was cpu bound, hwpmc showed an rw lock (presumably
from pfil_run_hooks), and pfil_run_hooks() as the top cpu users
behind my driver's rx handler, ip_input, and udp_input.  I got very
busy, and never had a chance to re-run the tests with the fix in
place.

 > Do you plan to MFC this?

I honestly hadn't checked to see if the bug was in -stable.
If it is, then I'll MFC it next week (if nobody beats me
to it).

Drew